[btcsuite/btcd] 82cba6: bmgr: Remove unused struct fields.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: 82cba61bad5a7ea30fb4a72f95263eea8bd2f771
      
https://github.com/btcsuite/btcd/commit/82cba61bad5a7ea30fb4a72f95263eea8bd2f771
  Author: Dave Collins <da...@conformal.com>
  Date:   2016-11-02 (Wed, 02 Nov 2016)

  Changed paths:
    M blockmanager.go

  Log Message:
  -----------
  bmgr: Remove unused struct fields.

Found by structcheck.